Is Polyjuice Potion a chemical transformation or a form of Transfiguration? I'm not a science genius and I genuinely can't decide if this is a chemical transformation or Transfiguration, or a combination of both. Yes, yes, I know it's a potion, which is chemical, but I've always thought the Polyjuice Potion has elements of Transfiguration magic to it as well. So I'm asking you fine people, which one is it?
For reference, see chapter 12 of Chamber of Secrets - The Polyjuice Potion.